DOI: 10.1175/JCLI-D-12-00697.1
Scopus记录号: 2-s2.0-84890183545
论文题名: Arctic sea ice reduction and extreme climate events over the mediterranean region
作者: Grassi B. ; Redaelli G. ; Visconti G.
刊名: Journal of Climate
ISSN: 8948755
出版年: 2013
卷: 26, 期: 24 起始页码: 10101
结束页码: 10110
语种: 英语
Scopus关键词: Atmospheric circulation
; Community atmosphere model
; Extreme events
; Extreme precipitation events
; Forcing
; General circulation model
; Regional climate modeling
; Regional model
; Climate models
; Climatology
; Computer simulation
; Precipitation (meteorology)
; Sea ice
; Arctic Oscillation
; atmospheric general circulation model
; climate change
; climate forcing
; computer simulation
; extreme event
; ice cover
; regional climate
; sea ice
; Arctic
; Arctic Ocean
; Barents Sea
; Greece
; Iberian Peninsula
; Italy
; Kara Sea
; Mediterranean Sea
英文摘要: During the last decade, Arctic sea ice cover has experienced an accelerated decline that has been suggested to drive the increased occurrence of extremely cold winter events over continental Europe. Observations and modeling studies seem to support the idea that Mediterranean climate is also changing. In this work, the authors estimate potential effects on the Mediterranean Basin, during the winter period, of Arctic sea ice reduction. Two sets of simulations have been performed by prescribing different values of sea ice concentrations (50% and 20%) on the Barents-Kara Seas in the NCAR Community Atmosphere Model, version 3 (CAM3), as representative of idealized present and future sea ice conditions. Global model simulations have then been used to run the Abdus Salam International Centre for Theoretical Physics (ICTP) Regional Climate Model, version 4 (RegCM4), over central Europe and the Mediterranean domain. Simulations provide evidence for a large-scale atmospheric circulation response to sea ice reduction, resembling the negative phase of the Arctic Oscillation (AO) and characterized by a wave activity flux from the North Atlantic toward the Mediterranean Basin, during winter months. An increase in the occurrence and intensity of extreme cold events, over continental Europe, and extreme precipitation events, over the entire Mediterranean Basin, was found. In particular, simulations suggest an increased risk of winter flooding in southern Italy, Greece, and the Iberian Peninsula. © 2013 American Meteorological Society. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/51529
Appears in Collections: 气候变化事实与影响
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作者单位: University of L'Aquila, CETEMPS/Department of Physical and Chemical Sciences, Coppito-L'Aquila, Italy
Recommended Citation:
Grassi B.,Redaelli G.,Visconti G.. Arctic sea ice reduction and extreme climate events over the mediterranean region[J]. Journal of Climate,2013-01-01,26(24)